Free AI-Powered Diagnostics

EV Diagnostic Tools
for Every Electric Vehicle

Instantly diagnose faults, decode DTCs, check battery health, and get AI-powered troubleshooting for India's most popular electric vehicles — completely free.

8+EV Brands Supported
50K+Diagnostics Run
500+DTC Codes Covered
FreeNo Sign-Up Needed
Diagnostic Tools

Select Your Electric Vehicle Brand

Choose your EV brand below to launch the AI diagnostic engine. Describe symptoms or enter fault codes for instant analysis.

MAHINDRA

Mahindra EV Diagnostic Tool

Mahindra Electric

AI-powered diagnostics for Mahindra electric vehicles — covers battery health monitoring, BMS error code analysis, motor controller faults, charging system diagnostics and high-voltage safety checks with Mahindra-specific DTC database.

XUV400 e20 Plus Treo e-Alfa Mini
Battery Pack Analysis BMS Fault Detection Motor Controller Codes Charging System Check
Launch Diagnostic
MG

MG Electric Cars Diagnostic Tool

MG Motor India

Comprehensive fault analysis for MG electric cars — battery degradation monitoring, inverter error code lookup, regenerative braking system diagnostics, HVAC thermal management checks and CAN bus communication fault detection.

ZS EV Comet EV Windsor EV
Battery Degradation Check Inverter Error Codes Regen Braking Analysis HVAC Thermal Diagnostics
Launch Diagnostic
BYD

BYD Diagnostic Tool

BYD India

Specialized diagnostics for BYD's Blade Battery technology and e-Platform architecture — battery cell health analysis, powertrain fault codes, charging protocol verification, thermal management monitoring and drivetrain performance checks.

Atto 3 Seal e6 eMAX 7
Blade Battery Health e-Platform Diagnostics Charging Protocol Check Thermal Management
Launch Diagnostic
TATA

TATA EV Diagnostic Tool

Tata Motors EV

Complete Ziptron powertrain diagnostic analysis for Tata electric vehicles — battery cell balancing checks, motor controller fault codes, CAN bus error detection, regenerative braking validation and charging infrastructure compatibility tests.

Nexon EV Tiago EV Punch EV Curvv EV
Ziptron Powertrain Cell Balancing Check CAN Bus Fault Codes Charging Compatibility
Launch Diagnostic
TESLA

Tesla Diagnostic AI Tool

Tesla Inc.

Advanced AI diagnostics for Tesla vehicles — Supercharger compatibility analysis, Autopilot sensor fault detection, battery thermal management monitoring, drivetrain DTC code lookup and over-the-air update issue troubleshooting.

Model 3 Model Y Model S Model X
Supercharger Analysis Autopilot Sensor Check Battery Thermal Mgmt OTA Issue Detection
Launch Diagnostic
TVS

TVS iQube Electric Diagnostic Tool

TVS Motor Company

Diagnostic analysis for TVS electric scooters — motor efficiency benchmarking, battery SOC/SOH tracking, controller error code detection, SmartXonnect system diagnostics and ride performance analytics for optimal range.

iQube iQube ST iQube S
Motor Efficiency Check SOC/SOH Tracking SmartXonnect Diagnostics Range Optimization
Launch Diagnostic
ATHER

Ather Diagnostic Tool

Ather Energy

Full diagnostic suite for Ather electric scooters — battery pack cell-level analysis, BLDC motor health monitoring, fast-charging validation, OTA firmware checks, ride data analytics and Atherstack platform error diagnostics.

450X 450S Rizta Rizta Z
Cell-Level Battery Check BLDC Motor Health Fast-Charge Validation OTA Firmware Check
Launch Diagnostic
OLA

Ola Scooter Diagnostic Tool

Ola Electric

Comprehensive diagnostics for Ola electric scooters — battery thermal safety analysis, hub motor performance checks, MoveOS system diagnostics, charging port fault detection, range prediction calibration and ride mode optimization.

S1 Pro S1 Air S1 X Roadster (upcoming)
Battery Thermal Safety Hub Motor Analysis MoveOS Diagnostics Range Calibration
Launch Diagnostic
How It Works

Diagnose Your EV in 4 Simple Steps

01

Select Your Brand

Choose your electric vehicle manufacturer from our 8 supported brands above.

02

Describe the Problem

Enter fault codes (DTCs) or describe symptoms in plain language — the AI understands both.

03

AI Analyzes Faults

Our engine cross-references manufacturer DTC databases, service manuals and real-world repair data.

04

Get Repair Guidance

Receive detailed diagnosis, root cause analysis, severity level, and step-by-step repair instructions.

What Our EV Diagnostic Tools Cover

Comprehensive EV Fault Analysis

Every diagnostic tool covers these critical electric vehicle systems with manufacturer-specific accuracy.

⚡

Battery Health & BMS Diagnostics

State of Charge (SOC), State of Health (SOH), cell balancing status, thermal runaway risk assessment, degradation curve analysis and BMS communication fault codes.

⚙

Motor & Powertrain Fault Detection

BLDC and PMSM motor health analysis, inverter fault codes, regenerative braking efficiency, torque sensor calibration, gearbox vibration and drivetrain performance metrics.

🔌

Charging System Diagnostics

AC/DC charging fault detection, EVSE communication errors, charging port inspection, Supercharger and fast-charging protocol validation, and power delivery anomalies.

💻

ECU & CAN Bus Error Analysis

Electronic Control Unit fault isolation, CAN bus communication errors, OBD-II DTC code lookup, sensor data validation and network topology fault mapping.

🌡

Thermal Management Monitoring

Battery cooling system checks, cabin HVAC fault codes, heat pump efficiency analysis, coolant flow sensor validation and thermal throttling detection.

🛠

Safety & HV System Checks

High-voltage interlock loop (HVIL) verification, insulation resistance monitoring, contactor status checks, ground fault detection and crash safety system validation.

Why Use AI-Powered EV Diagnostic Tools?

Electric vehicles use fundamentally different powertrain architectures compared to ICE vehicles, which means traditional diagnostic approaches often fall short. AI-powered EV diagnostic tools bridge this gap by leveraging machine learning trained on manufacturer-specific fault code databases, service bulletins, and real-world repair data from thousands of certified EV technicians.

Whether you're an EV owner experiencing a warning light, an independent mechanic expanding into electric vehicle repair, or an automotive engineering student learning EV systems, these free diagnostic tools provide instant, accurate fault analysis without requiring expensive proprietary scan tools.

Each tool on ev.care is specifically calibrated for its brand's unique architecture. For example, the Tata EV Diagnostic Tool understands Ziptron-specific DTCs, while the BYD Diagnostic Tool is trained on Blade Battery cell configurations. This brand-specific intelligence delivers significantly more accurate results than generic OBD scanners.

Built by DIYguru — India's leading EV training organization with 95,000+ professionals trained and partnerships with Bosch, Hyundai, Tata Motors, and IIT Jammu — these EV diagnostic tools represent the practical application of industry expertise made accessible to everyone.

Frequently Asked Questions

EV Diagnostic Tools FAQ

What are EV Diagnostic Tools?
EV Diagnostic Tools are AI-powered software applications that analyze electric vehicle fault codes (DTCs), battery health, motor performance, and charging system issues. They help EV owners and technicians identify problems, understand error codes, and get step-by-step troubleshooting guidance without visiting a service center.
Which electric vehicle brands are supported?
ev.care currently supports 8 major EV brands: Mahindra (XUV400, e20 Plus, Treo), MG (ZS EV, Comet EV), BYD (Atto 3, Seal, e6), Tata (Nexon EV, Tiago EV, Punch EV), Tesla (Model 3, Y, S, X), TVS (iQube, iQube ST), Ather (450X, Rizta), and Ola (S1 Pro, S1 Air, S1 X). More brands are being added regularly.
Are these EV diagnostic tools free to use?
Yes, all EV diagnostic tools on ev.care are completely free to use with no sign-up required. Simply select your vehicle brand, describe the symptoms or enter a fault code, and the AI engine provides instant diagnosis with troubleshooting steps and repair recommendations.
How accurate are AI-based EV diagnostics?
Our AI diagnostic tools are trained on manufacturer-specific DTC databases, service manuals, and real-world repair data from 50,000+ EV professionals trained by DIYguru. While they provide highly accurate initial diagnosis and troubleshooting guidance, we recommend professional verification for safety-critical systems like high-voltage batteries and charging circuits.
Do I need an OBD scanner to use these tools?
No OBD scanner is required. You can describe symptoms in plain language (e.g., "my Nexon EV shows reduced power and the battery warning light is on") or enter known fault codes. The AI analyzes the information and provides diagnosis. However, entering specific DTC codes from an OBD-II scanner will give more precise results.
Can these tools diagnose high-voltage battery issues?
Yes, our tools can analyze battery-related fault codes, estimate State of Health (SOH), detect cell imbalance patterns, and identify thermal management issues. However, physically working on high-voltage EV battery systems should only be done by certified technicians following proper lockout/tagout safety procedures.
Who built these EV diagnostic tools?
These tools are developed by ev.care, a service of DIYguru — India's leading EV training and upskilling platform. DIYguru has trained 95,000+ professionals, partnered with 320+ automotive companies including Bosch, Hyundai, and Tata Motors, and is accredited by AICTE, ASDC, and recognized by NITI Aayog for EV workforce development.

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